Oval|Natural|GIA

6.50ct G SI1 Oval Natural Diamond

ID • G/SI1 • GIA 6552542988

Certificate GIA 6552542988

Diamond specifications and retailer prices

From $157,840 USD
As of October 28, 2026
Save $128,337 USD (45%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $286,177 USD at MOH London · As of October 29, 2026
View at MOH London

About this 6.5ct natural oval diamond

This 6.5ct natural oval sits in the over five carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6552542988. Listed at 22 retailers as of October 28, 2026, with prices from $157,840 to $286,177, a $128,337 spread on the same certified stone. MOH London lists it at $286,177. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

6.50
Carat
G
Color
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle42.37°
Pavilion angle37.64°
OriginNatural
Grading LabGIA
CertificateGIA 6552542988
Dimensions14.27 × 10.18 × 6.55 mm
L/W Ratio1.40
Culet sizeNone
Key to symbols
Feather, Crystal, Cloud, Needle
Top View
14.27 mm10.18 mm6.50 ctG / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6552542988
Side View
Table 65.0%Crown 42.37°Girdle: STK-VTKPavilion 37.64°Culet: NoneDepth 64.3%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 28
Current: $286,177 USD|Low: $132,762 USD|High: $286,177 USD|Avg: $173,784 USD|+19.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
Retailer 20
Retailer 21
Retailer 22
Retailer 23
Retailer 24
October 31, 2026
Retailer 14$132,762 USD
Retailer 12$141,272 USD
Retailer 10$144,080 USD
Retailer 15$144,982 USD
Retailer 21$157,840 USD
Retailer 17$162,149 USD
Retailer 16$162,518 USD
Retailer 3$163,628 USD
Retailer 9$164,037 USD
Retailer 7$166,006 USD
Retailer 11$166,697 USD
Retailer 5$175,855 USD
Retailer 18$178,564 USD
Retailer 4$182,264 USD
Retailer 23$189,858 USD
Retailer 24$189,858 USD
Retailer 8$190,696 USD
Retailer 13$197,284 USD
Retailer 22$197,452 USD
Retailer 6$205,046 USD
Retailer 2$214,026 USD
Retailer 20$219,359 USD
Retailer 19$225,551 USD
MOH London$286,177 USD

24 data points across 24 retailers

22 retailers$157,840 USD to $286,177 USD

Retailer 1
-
$132,762 USD
HK$1,037,200 HKD
Price last confirmed 26 days ago
Retailer 2
-
$141,272 USD
A$217,342 AUD
View
Price last confirmed 29 days ago
B+
Retailer 3
-
$157,840 USD
View
Retailer 4
-
$162,149 USD
View
Price last confirmed 27 days ago
Retailer 5
-
$162,518 USD
View
Price last confirmed 29 days ago
B
Retailer 6
-
$163,628 USD
View
B
Retailer 7
-
$164,037 USD
View
Final sale: no returns
B
Retailer 8
-
$166,006 USD
View
Retailer 9
-
$170,463 USD
View
Price last confirmed 61 days ago
B
Retailer 10
-
$175,855 USD
View
B
Retailer 11
-
$178,564 USD
£140,602 GBP
View
B
Retailer 12
-
$182,264 USD
View
B
Retailer 13
-
$189,858 USD
View
B
Retailer 14
-
$189,858 USD
View
B
Retailer 15
-
$190,696 USD
View
B
Retailer 16
-
$197,284 USD
£155,342 GBP
View
B
Retailer 17
-
$197,452 USD
View
B
Retailer 18
-
$205,046 USD
View
B
Retailer 19
-
$214,026 USD
€203,834 EUR
View
B
Retailer 20
-
$219,359 USD
ZAR 3,543,769 ZAR
View
B
Retailer 21
-
$225,551 USD
View
Most Expensive
B
MOH London
219EBFA70 · Oct 29
$286,177 USD
£225,336 GBP
View
21 more retailers have this diamond
Prices start from $157,840 USDSave up to $128,337 USD

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

B+
6.50ct Oval
$157,840 USD